Wastewater Facility Surveys
7. Does the facility include any protective or precautionary structures to minimize the impacts of flooding? (Examples include sea walls, dikes, bypass systems, etc.)
__ Yes _X_ No
a. If yes, what type of protective or precautionary structures?
8. Any additional comments or information regarding flood vulnerability?
Chatham (with EPA)
Wastewater Treatment Facility Flood Vulnerability Survey
Monday, September 17th, 2012
Instructions: Please fill out the following survey questions to the best of your ability and return via email
ASAP to Nicolas Dupuis ([email protected]) at Mass DEP. (Note that a representative of the project will be contacting your facility by phone by Wednesday, September 19th, 2012 to follow up.)
Responders’ name: ______Michael Keller_____________________ Title: __Chief wastewater operator__________________________
9. What are your responsibilities at the facility?
Daily operations
10. Does your wastewater treatment facility have any equalization basins?
__ Yes _X_ No
11. What are your facility’s design flow and actual flow?
__2 MGD____ Design Flow ___.150 MGD___ Actual (Average) Flow
12. Mass DEP has information about your plant’s backup power. Please confirm or correct the following information:
a. In the case of an emergency does your facility own backup power?
_X_ Yes __ No (DEP data: Yes )
c. If yes, how long can the backup generator operate without obtaining additional fuel?
__6_ Days ___ Hours (DEP data: 8 Days)
d. Approximately what percentage of plant operation will be able to function during this time?
__100__ % (DEP data: 100% )
_X_ Yes __ No
a. If Yes, how much does the increase in flow exceed capacity:
_X_ 0-10% __ 11-50% __ 50-100% __ >100% Does not exceed
14. Has the facility suffered from any past flooding damage that may have made the plant operations inaccessible?
__ Yes _X_ No (DEP data: No )
a. If yes, please describe:
15. Does the facility include any protective or precautionary structures to minimize the impacts of flooding? (Examples include sea walls, dikes, bypass systems, etc.)
__ Yes _X_ No
b. If yes, what type of protective or precautionary structures?
16. Any additional comments or information regarding flood vulnerability?
Significant storm surges would cause problems.
Dartmouth (with EPA)
Wastewater Treatment Facility Flood Vulnerability Survey
Monday, September 17th, 2012
Instructions: Please fill out the following survey questions to the best of your ability and return via email
ASAP to Nicolas Dupuis ([email protected]) at Mass DEP. (Note that a representative of the project will be contacting your facility by phone by Wednesday, September 19th, 2012 to follow up.)
Responders’ name: ___Carlos Cardoso________________________ Title: ___Plant manager_________________________
17. What are your responsibilities at the facility?
Run facility
18. Does your wastewater treatment facility have any equalization basins?
__ Yes _X_ No
19. What are your facility’s design flow and actual flow?
___4.2___ Design Flow ___2.3___ Actual (Average) Flow
20. Mass DEP has information about your plant’s backup power. Please confirm or correct the following information:
a. In the case of an emergency does your facility own backup power?
_X_ Yes __ No (DEP data: Yes )
e. If yes, how long can the backup generator operate without obtaining additional fuel?
_Continuous__ Days ___ Hours (DEP data:
Continuous)
f. Approximately what percentage of plant operation will be able to function during this time?
21. Is your facility subject to rainfall induced flow?
_X_ Yes __ No
a. If Yes, how much does the increase in flow exceed capacity:
__ 0-10% _X_ 11-50% __ 50-100% __ >100% 5.75/4.2
22. Has the facility suffered from any past flooding damage that may have made the plant operations inaccessible?
__ Yes _X_ No (DEP data: No )
a. If yes, please describe:
23. Does the facility include any protective or precautionary structures to minimize the impacts of flooding? (Examples include sea walls, dikes, bypass systems, etc.)
_X_ Yes __ No
c. If yes, what type of protective or precautionary structures?
High Walls
24. Any additional comments or information regarding flood vulnerability?
Need the town to proceed in cutting down on rain in-flow. ($10.6 million)
MWRA – Deer Island (with EPA)
Wastewater Treatment Facility Flood Vulnerability Survey
Monday, September 17th, 2012
Instructions: Please fill out the following survey questions to the best of your ability and return via email
ASAP to Nicolas Dupuis ([email protected]) at Mass DEP. (Note that a representative of the project will be contacting your facility by phone by Wednesday, September 19th, 2012 to follow up.)
Responders’ name: ___Daniel O’Brien___________ Title: __Director, Deer Island Treatment Plant__________
25. What are your responsibilities at the facility?
Senior management person on-site - Responsible for all operation and maintenance
26. Does your wastewater treatment facility have any equalization basins?
__ Yes _X No
27. What are your facility’s design flow and actual flow?
_1270 Primary, 700 Secondary___ Design Flow __360____ Actual (Average) Flow
28. Mass DEP has information about your plant’s backup power. Please confirm or correct the following information:
a. In the case of an emergency does your facility own backup power?
_X_ Yes __ No (DEP data: Yes )
g. If yes, how long can the backup generator operate without obtaining additional fuel?
_30_ Days ___ Hours (DEP data: 30 Days)
h. Approximately what percentage of plant operation will be able to function during this time?
_100__ % (DEP data: 100% )
_X_ Yes __ No
a. If Yes, how much does the increase in flow exceed capacity:
__ 0-10% __X 11-50% __ 50-100% __ >100%
30. Has the facility suffered from any past flooding damage that may have made the plant operations inaccessible?
__ Yes _X_ No (DEP data: No )
a. If yes, please describe:
Note - Winthrop causeway can flood in extreme conditions – we try to schedule around the tides if that is a problem
31. Does the facility include any protective or precautionary structures to minimize the impacts of flooding? (Examples include sea walls, dikes, bypass systems, etc.)
_X_ Yes __ No
d. If yes, what type of protective or precautionary structures?
Yes – Seawalls on eastern shore, Riprap on western shore
32. Any additional comments or information regarding flood vulnerability?
Plant was designed in the late 1980’s using FEMA maps for 25- and 100-year flood elevations plus additional protection to account for sea level rise.
Note – This response is for Deer Island only- not other MWRA WW Facilities THANK YOU VERY MUCH FOR YOUR ASSISTANCE TO THIS PROJECT!
Lynn (with EPA)
Wastewater Treatment Facility Flood Vulnerability Survey
Monday, September 17th, 2012
Instructions: Please fill out the following survey questions to the best of your ability and return via email
ASAP to Nicolas Dupuis ([email protected]) at Mass DEP. (Note that a representative of the project will be contacting your facility by phone by Wednesday, September 19th, 2012 to follow up.)
Responders’ name: Robert J. Tina Title: Director of Operations WWTP
33. What are your responsibilities at the facility?
Oversee the contractor operations and maintenance of the facility and pump stations
34. Does your wastewater treatment facility have any equalization basins?
__ Yes X No
35. What are your facility’s design flow and actual flow?
25.8 MGD Design Flow 22 MGD Actual (Average) Flow
36. Mass DEP has information about your plant’s backup power. Please confirm or correct the following information:
a. In the case of an emergency does your facility own backup power?
X Yes __ No (DEP data: Yes )
i. If yes, how long can the backup generator operate without obtaining additional fuel?
10 Days Hours ___ (DEP data: 10 Days)
j. Approximately what percentage of plant operation will be able to function during this time?
100 % (DEP data: 100% )
X Yes No_____
a. If Yes, how much does the increase in flow exceed capacity:
__ 0-10% __ 11-50% _X_ 50-100% __ >100%
38. Has the facility suffered from any past flooding damage that may have made the plant operations inaccessible?
Yes __ X No (DEP data: Yes )
- See number 8 below -
39. Does the facility include any protective or precautionary structures to minimize the impacts of flooding? (Examples include sea walls, dikes, bypass systems, etc.)
X Yes __ No
e. If yes, what type of protective or precautionary structures?
The WWTP has a plant bypass system (which has never been utilized) and the availability of an addition outfall (002) which is utilized only during excessive flows (storm events).
40. Any additional comments or information regarding flood vulnerability?
The WWTP itself did not experience any flooding (due to a storm event) that made plant operations inaccessible however, on May 18, 2006 during a significant rain event, the Washington Street Pump Station flooded and was inaccessible.
New Bedford (with EPA)
Wastewater Treatment Facility Flood Vulnerability Survey
Monday, September 17th, 2012
Instructions: Please fill out the following survey questions to the best of your ability and return via email
ASAP to Nicolas Dupuis ([email protected]) at Mass DEP. (Note that a representative of the project will be contacting your facility by phone by Wednesday, September 19th, 2012 to follow up.)
Responders’ name: James Ricci Title: Superintendent of Water
41. What are your responsibilities at the facility? Oversee the City’s O&M contractor, Veolia Water, capital improvement planning, permitting.
42. Does your wastewater treatment facility have any equalization basins?
__ Yes X_ No
43. What are your facility’s design flow and actual flow?
30 MGD Average Daily Design Flow 21.5MGD Actual (Average) Flow 75 MGD Maximum Daily Flow
44. Mass DEP has information about your plant’s backup power. Please confirm or correct the following information:
a. In the case of an emergency does your facility own backup power?
_X_ Yes __ No (DEP data: Yes )
k. If yes, how long can the backup generator operate without obtaining additional fuel?
Our generators are fueled by natural gas thus can operate for an unlimited time barring a disruption in the gas supply
___ Days ___ Hours (DEP data: None)
_100___ % (DEP data: 100% ) 45. Is your facility subject to rainfall induced flow?
_X Yes __ No
a. If yes, how much does the increase in flow exceed capacity:
__ 0-10% __ 11-50% __ 50-100% _X_ >100%
46. Has the facility suffered from any past flooding damage that may have made the plant operations inaccessible?
__ Yes _X No (DEP data: No )
a. If yes, please describe:
47. Does the facility include any protective or precautionary structures to minimize the impacts of flooding? (Examples include sea walls, dikes, bypass systems, etc.)
__ Yes _X_ No The facility was built at an elevation to withstand projected flooding for a 100 year storm. To achieve the necessary elevation, portions of the site were built up. The southern portion of the elevated area is protected by rip rap.
f. If yes, what type of protective or precautionary structures?
48. Any additional comments or information regarding flood vulnerability?
The facility is designed to treat a maximum flow of 75MGD. Should the flow rate reach this point, a sluice gate lowers regulating the flow into the facility. Excess flow would then back up into the collection system. The excess collection flow would then be discharged through CSO’s located throughout the system.
Oak Bluffs (with EPA)
Wastewater Treatment Facility Flood Vulnerability Survey
Monday, September 17th, 2012
Instructions: Please fill out the following survey questions to the best of your ability and return via
email ASAP to Nicolas Dupuis ([email protected]) at Mass DEP. (Note that a representative of the project will be contacting your facility by phone by Wednesday, September 19th, 2012 to follow up.)
Responders’ name: Jim Monteith Title: Acting Facilities Manager
1. What are your responsibilities at the facility? Acting facilities manager and chief operator
2. Does your wastewater treatment facility have any equalization basins?
__ Yes _X_ No
3. What are your facility’s design flow and actual flow?
_330,000 GPD_____ Design Flow ___summer seasonal average 150,000 GPD___ Actual (Average) Flow